Now massively implement this codec and there is a need for a encoder. in the past I have used a good program "oggdropxpd" it is irreplaceable and now, but with the release opus has increasingly use to them. expected to release opusdropxpd?

Most linux distros that have a GStreamer opusenc have the opusenc binary in their repositories.

opusenc file.flac -o file.opus

works great. Copies all the tags over too. And unless I mis-understand what it is doing, it applies album gain (if specified in the flac) before encoding and gives a R128 track gain in the metadata for playing back outside of album context. I don't think a GStreamer pipe will do that.